BZX84C7V5 Equivalent & Substitute Parts

Part Overview

The BZX84C7V5 is an active-status Zener diode manufactured by Diotec Semiconductor, designed for voltage regulation and protection applications. This surface-mount component operates at a nominal Zener voltage of 7.5 V with a maximum power dissipation of 300 mW. The device is packaged in SOT-23-3 (TO-236) configuration and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, procurement lead times, or design flexibility needs.

Substiute Parts

BZX84C7V5

Diotec SemiconductorIn Stock: 17143BZX84C7V5 Datasheet

Current PartRFQ

BZX84B7V5

Diotec SemiconductorIn Stock: 9375BZX84B7V5 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of Zener diodes is determined by strict equivalence across the following critical parameters:

• Nominal Zener Voltage (Vz): Must match at 7.5 V
• Maximum Power Dissipation: Must equal or exceed 300 mW
• Package / Case Type: Must be SOT-23-3 (TO-236) for mechanical and thermal compatibility
• Operating Temperature Range: Must encompass -50°C to 150°C
• Mounting Type: Must be Surface Mount
• Reverse Leakage Current: Must not exceed 1 µA @ 5 V

The BZX84B7V5 qualifies as a parametric equivalent because it maintains identical electrical performance across all critical parameters while offering improved tolerance specification (±2% versus ±5%). Both devices share the same package footprint, thermal characteristics, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the BZX84C7V5 and BZX84B7V5 are active-status components suitable for direct substitution in voltage regulation and protection circuits. The primary distinction is tolerance specification: the BZX84B7V5 provides ±2% tolerance compared to the ±5% tolerance of the BZX84C7V5. This tighter tolerance in the substitute part results in improved voltage accuracy without any compromise to power handling, thermal performance, or package compatibility.

Selection between these parts should be based on circuit tolerance requirements. Applications requiring tighter voltage regulation benefit from the BZX84B7V5, while applications with broader tolerance margins are satisfied by either part. Both devices maintain identical reverse leakage characteristics, impedance specifications, and operating temperature ranges, ensuring functional equivalence across all standard application scenarios.

The BZX84C7V5 is available in Cut Tape (CT) & Digi-Reel® packaging with 17,100 units in stock. The BZX84B7V5 is available in Tape & Reel (TR) packaging with 9,300 units in stock. Packaging format selection depends on assembly process requirements and procurement volume.

Frequently Asked Questions (FAQ)

Q: Can the BZX84B7V5 replace the BZX84C7V5 in existing designs?

A: Yes. The BZX84B7V5 is a direct parametric equivalent with identical nominal Zener voltage (7.5 V), maximum power dissipation (300 mW), impedance (15 Ohms), reverse leakage current (1 µA @ 5 V), operating temperature range (-50°C to 150°C), and package type (SOT-23-3). The substitute part offers improved tolerance specification (±2% versus ±5%), which enhances voltage regulation accuracy without introducing any functional incompatibility.

Q: Are there mechanical compatibility concerns between these parts?

A: No. Both the BZX84C7V5 and BZX84B7V5 use identical SOT-23-3 (TO-236) packaging. They share the same footprint, lead configuration, and thermal characteristics, ensuring direct mechanical compatibility on printed circuit boards without layout modifications.

Q: What is the significance of the tolerance difference between ±5% and ±2%?

A: Tolerance specification defines the acceptable deviation of the Zener voltage from its nominal 7.5 V rating. The BZX84C7V5 allows voltage variation between 7.125 V and 7.875 V (±5%), while the BZX84B7V5 restricts variation to between 7.35 V and 7.65 V (±2%). Applications requiring precise voltage regulation benefit from the tighter tolerance of the BZX84B7V5. Applications with broader tolerance margins function identically with either part.

Q: Do these parts have different regulatory compliance status?

A: The BZX84C7V5 is explicitly RoHS3 compliant. The BZX84B7V5 shows "Not applicable" for RoHS status in available documentation. Both parts are REACH unaffected or vendor undefined, respectively. Compliance verification with the substitute part should be confirmed against specific regulatory requirements for your application region and end-use classification.

Q: What packaging formats are available for each part?

A: The BZX84C7V5 is supplied in Cut Tape (CT) & Digi-Reel® format. The BZX84B7V5 is supplied in Tape & Reel (TR) format. Selection depends on assembly process compatibility and procurement volume requirements. Cut tape is suitable for lower-volume or manual assembly operations, while tape and reel format is optimized for automated pick-and-place assembly systems.

Q: Are there inventory considerations when selecting between these parts?

A: The BZX84C7V5 has 17,100 units in stock, while the BZX84B7V5 has 9,300 units in stock. Inventory availability may influence part selection based on procurement timeline and volume requirements. Both parts maintain active product status with ongoing manufacturer support.